GDS - Triaxial Testing System (Automated Stress Path type)(GDSTTS) Has Been Successfully Test Received By Huaiyin Engineering Institute
GDS - Triaxial Testing System (Automated Stress Path type)(GDSTTS) has the option to be upgraded and include bender element systems and hall effect local strain transducers.
The GDS Triaxial Testing System (GDSTTS) is a fully automated triaxial testing system designed principally for stress path testing.
The GDSTTS is based on the classic Bishop & Wesley type stress path triaxial cell which controls stress directly on the sample. The system can be configured using Enterprise, Standard or Advanced level controllers. The 38/50mm cell is for up to 7kN axial force, with the larger 70/100mm cell up to 25kN. This is the system of choice for teaching laboratories and researchers.
The GDS Bender Element System (GDSBES) enables measurement of the maximum shear modulus of a soil at small strains.
The GDS system is unique in that it is a turn-key system that has been designed to make bender element testing reliable and easy to perform. The GDSBES system can be added as an option to most GDS systems, as well as systems from other manufacturers. To date GDS have installed bender elements in triaxial, consolidation, simple shear, resonant column, core holders and many other systems manufactured by GDS and other manufacturers.
On Sample Hall Effect Transducers (HE) are very light and easy to handle, therefore can be mounted to the sample for small strain measurement with minimal disturbance to the sample. Small strain stiffness values are becoming more commonly required by consultants due to the parameters required for FE models. It has been recognised for many years that small strain measurement is more representative to the operational strain, and that the small strain stiffness curve is required for any advanced modelling of the soil.
Technical Specification:
Data Aquisition 16 Bit
Resolution of Volume Measurement +/- 3.0mm = <0.1μm
Volume Accuracy +/-0.2% FRO over 4mm range, +/-0.3% FRO over 5mm range and +/- 0.4% FRO over 6mm range,
Weight Approx (kg) : Radial Caliper Weight, 38mm caliper = 24g, 70mm caliper = 46g, : Axial Apparatus Weight (1 off) = 16g, : Transducer Weight (1 off encapsulated Hall Effect Chip) = 5g
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